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Helen from West Blocton writes

Will FenvaStar EcoCap kill moth flies or drain flies?

We had a sewage pipe bust under our trailer and now we have an infestation of drain flies in our bathroom. If we used this where the sewage pipe busted will it break the cycle with the eggs? (We are also waiting for it to "dry" up) If not any suggestions on this. We have been invaded!


FenvaStar EcoCap is labeled for a variety of moths but it's not labeled for drain flies. You can use InVade Bio Drain to get rid of the organic matter in the drains but it would be best to use the Drain Fly Kit.

Answer last updated on: 03/18/2016

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FenvaStar EcoCap

FenvaStar EcoCap

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